Mindat Short Description
Kaolinite-Serpentine Group.
Geoscience Ontology Status Notes
Leith C K (1903) The Mesabi iron-bearing district of Minnesota. Section II. The Biwabik Formation (iron-bearing), Monographs of the United States Geological Survey 43, 100-115
IMA Formula (from Mindat)
(Fe2+,Fe3+)2-3Si2O5(OH)4
RRUFF Formula (from Geoscience Ontology)
(Fe2+,Fe3+)2-3Si2O5(OH)4